@misc{Grunau_Simon_(ca_1470-ca_1531)_Preussische,
 author={Grunau, Simon (ca 1470-ca 1531)},
 address={Leipzig},
 howpublished={online},
 publisher={Duncker & Humblot},
 language={ger},
 type={książka},
 title={Preussische Chronik. Bd. 2, Tractat 15-22},
}